Volume Of The Heating System; Filling And Bleeding The Installation - Fujitsu Waterstage WOYG160LJL Installation Manual

▼ Volume of the heating system

You must maintain the minimum installation water
volume. Install a buffer tank on the return from the
heating circuit in case the volume is lower than this
value. Where the system is fitted with one or more
thermostatic valves, you must ensure that this minimum
water volume is able to circulate.
Appliance
Waterstage SHP 16
Waterstage SHP TRI 15
Waterstage SHP TRI 17
►

Filling and bleeding the installation

Check the pipe fixings, tightness of the connectors and
the stability of the hydraulic unit.
Check the direction in which the water is circulating and
that all the valves are open.
Proceed to fill the installation.
Do not operate the circulation pump during filling. Open
all the drain valves in the installation and the bleeder
valve on the hydraulic unit to expel the air contained in
the pipes.
Close the drain valves and add water until the pressure
in the hydraulic circuit reaches 1 bar.
Check that the hydraulic circuit has been bled correctly.
Check there are no leaks.
After the " Commissioning", page
machine has started, bleed the hydraulic unit again.
Precise filling pressure is determined by the
water pressure in the installation.
P
fig. 25 - Hydraulic unit automatic bleeder valve
Waterstage / Installation / 2011 - EN
Min. volume in litres PER CIRCUIT (excl. HP)
Mandatory
Fan-coil
110
102
119
44, and once the
Recommendation
Radiators
98
90
106
Recommendation
Heating-cooling floor
55
50
60
- 31 -